IT is customary, we believe, for the Professors in some of the departments to give but one hour to the instruction of the members of two different electives. We do not wish to question the wisdom of this method in the particular cases that we have in mind; there may be reasons strong enough to justify its adoption. On general principles, however, the system is not a good one. In the first place the student gets but half an hour of instruction, instead of the full hour, which, when he took the course, he had every reason to suppose he would receive. Then again, when his half-hour is over, he must be an unwilling listener to instruction that, in most cases at least, can be of little use to him. Besides this, one would think that a whole hour was quite short enough time for an instructor, however full of his subject, to do justice either to himself or his class.